Surface modification ofZIF-90 with triptycene for enhanced interfacial interaction inmixed-matrixmembranes for gas separation
文献类型：期刊论文
| 作者 | Zhang, Qinnan2; Luo, Shuangjiang1; Weidman, Jennifer2; Guo, Ruilan2 |
| 刊名 | JOURNAL OF POLYMER SCIENCE
 |
| 出版日期 | 2020-08-25 |
| 页码 | 13 |
| 关键词 | interfacial morphology mixed-matrix membrane surface modification triptycene-containing polyimide ZIF-90 |
| ISSN号 | 2642-4150 |
| DOI | 10.1002/pol.20200123 |
| 英文摘要 | Zeolite imidazole framework (ZIF-90) nanoparticles were chemically modified by grafting triptycene moieties. The modified nanoparticles were introduced into a triptycene-based polyimide as fillers to generate mixed matrix membranes (MMMs) for gas separation. The incorporation of "hook-like" triptycene moieties in both dispersed and continuous phases led to intimate contact between the two phases and thus defect-free interfacial morphology, due to the supramolecular interlocking and pi-pi stacking interaction between triptycene units presented in both phases. The filler/polymer solution showed shear thickening behavior due to such strong interfacial interaction. The separation performance of the prepared composite membranes was investigated as a function of filler loading and particle surface grafting density. Pure-gas permeation results showed that the gas permeabilities increased expectedly as the filler loading increased, with stable or improved selectivities. The reduced permeability relative to pristine polyimide film is likely due to the pore blockage of ZIF-90 upon grafting triptycene moieties on the particle surface. Reducing the grafting density of triptycene moieties led to improved permeability and selectivity suggesting good tunability of this series of new composite membranes. Overall, modification of nanofiller with hierarchical triptycene moieties offers a fundamentally new avenue for creation of composite membranes with unique properties in gas separations. |
| WOS关键词 | MIXED-MATRIX MEMBRANES ; COMPOSITE MEMBRANES ; CONTAINING POLYIMIDE ; ZIF-90 NANOCRYSTALS ; CO2 SEPARATION ; POLYMER ; PERFORMANCE ; TRANSPORT ; MANIPULATION ; IPTYCENES |
| 资助项目 | University of Notre Dame ; U.S. Department of Energy |
| WOS研究方向 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000564883700001 |
| 出版者 | WILEY |
| 资助机构 | University of Notre Dame ; U.S. Department of Energy |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/41921]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Guo, Ruilan |
| 作者单位 | 1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn, Beijing, Peoples R China 2.Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Qinnan,Luo, Shuangjiang,Weidman, Jennifer,et al. Surface modification ofZIF-90 with triptycene for enhanced interfacial interaction inmixed-matrixmembranes for gas separation[J]. JOURNAL OF POLYMER SCIENCE,2020:13. |
| APA | Zhang, Qinnan,Luo, Shuangjiang,Weidman, Jennifer,&Guo, Ruilan.(2020).Surface modification ofZIF-90 with triptycene for enhanced interfacial interaction inmixed-matrixmembranes for gas separation.JOURNAL OF POLYMER SCIENCE,13. |
| MLA | Zhang, Qinnan,et al."Surface modification ofZIF-90 with triptycene for enhanced interfacial interaction inmixed-matrixmembranes for gas separation".JOURNAL OF POLYMER SCIENCE (2020):13. |
入库方式： OAI收割
来源：过程工程研究所
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